Lighting fixture



April 20, 1937. E. F. SIBBERT 2,078,032

LIGHTING FIXTURE Filed Feb. 7, 1936 TEI-L- I INVENTOR Edward ZJa'bbeff BYOQWW,

ATTORNEYS 55 there are outwardly radiating support arms l applications has special utility in salesroomswitl l rPatenterlsApr. 20, 1937 i ;;Z:,078,03Z

monrma mx'rrmn Edward Sibbert, Brooklyn, N. Y., assignor to S. H. Kress and Company. New York, N. Y., a corporation oi New York Application February 7, 1936, Serial No. 62,725

\ 4 Claims. (Cl. 240-78) My present invention relates to lighting fixof ornamental shape, which extend generally tures, more particularly to fixtures of the type to downward from the socket cover. be suspended from the ceiling. Carried by the support arms is a light-diffusing Among the objects of the invention are to probowl M, which preferably is open and of maxi- 5 vide a fixture of the above type of simple and mum diameter at its top and has an outwardly 5 relatively inexpensive construction, involving few turned upper rim 22, .resting on the inturned parts, that are easily assembled and affording not lower rim of a sheet metal carrying ring "5 to only scientifically correct, eflicient and glareless which are amxed, as by screws ls studs l'i with illumination'but also constituting in itself efieceyes l9 resting over the upturned hook ends 20 tive decoration for the room, gallery or storeln of the support arms 95. 10 v which it is used. The bowl M has a bottom 23 with a central Another object is to provide a fixture of the opening 24 therein, illustrativelya circular openabove type which with the use of inexpensive ing, concentric with the bowl and of diameter metal affords. the particularly rich efiect of inlaid considerably in excess of half the diameter of cast'stained glass. the bowl. Supported within opening 24 is abafl'ie 15 Another object isto provide a fixture of the unit B, preferably of opaque structure, which may above type which-permits expansion and contracbe cast as a unitary piece of aluminum. This tion of the vitreous'and metal parts without like- 'bafile unit is shown with a circular outer wall 25 lihood of cracking under the heat of the lamp, and an ornamental or decorative pattern of prefand which though it presents the appearance erably vertical bafile partitions framed thereby.

of an enclosed structure, nevertheless affords In the particular embodiment shown, the baffle 20 complete ventilation. unit has a pair of concentric arcuate partitions A feature of the invention is to provide a glass 26 each of somewhat less than a semi-circle, with bowl concealing a lamp encircled thereby, said the inner walls thereof terminating in scroll conbowl having arelatively large opening carrying an formations 29, and short arcuate walls 21 joining 25 opaque exposedbaiiie unit, presenting a pattern the longer arcuate walls 26, said various arcuate oi louver walls, so that the light is not only walls connected to the outer circular walls by diflusedthrough the bowl, but some of it is passed radiating partitions 28. Partitions join the directly through the bame, which atter in turn various scrolls to the middle of the respective is illuminated fromthe source of light and is walls 28 and their junction is connectedby 30 visible from the side to produce the attractive diametrically extending partitions 3! to a hollow cast stained glass eflect desired. square central conformation 32. While the pat- Anot er feature is the t u al relation of tern described is particularly suitable for the Parts, including a Series Of pp arms radlatpurpose at hand, it is merely one illustrative form s from the Socket cover and carrying difiusoi myriads of possible patterns that might be used.

35 mg bowl element by suspension from the According to the invention, the baflie unit is rim of the t the bame being supported of height preferably in the order of one inch or in centralopemng m said bowl so, and its outer wall 25 is of greater thickness as i g agfgg gggi g gm gggfizg5 1 222; at 35 for the major portion of the height above 0 features of the invention the lower end thereof, thereby to aii'ord a flange 40 mg 1 1s a View m longitudmal cross secuou with a narrow shoulder 36 to rest upon the inner through t m; m ilt lzowlancijtn aifnriid a. sulbstanliiial height Proru ng eow e ow ass own.

thgr got is & fragmentary bottom plan View Preferably the extent of protrusion of the now to the drawing, the u it bafle wall and partitions is not uniform, but 45 rises a conventional 1am socket cover m illustratively the scroll conformations 29 proi m any appropriate gunner from the n trude downward below the rest of the wall, ,the

n housin the conventional lam socket ii edge of said r0115 extendlng. obliquely the a m p as shown at 33 rather than horizontally, the

mm secured to the socket 16 lowermost part of the scroll being the end point end thereof, as for instance by nuts it and-aflixed The Purpose of this unstructlon w l app ar upon the threaded inner ends ll which protrude" hereinafter. through corresponding holes in the socket cover. T fixture While Suitable in a Wide V y 0f low ceilings, as, for instance, in the basement salesrooms of department stores, chainstores and the like. In that relation, it is desirable to avoid the possibility of glare from the bulb l2 to the eyes especially of tall persons. Accordingly, an upper smaller auxiliary light diffusing bowl 3! is provided about the bulb, which is supported at its smaller upper rim 38 by conventional support screws 39 and flares downward and outward to a. rim 40 somewhat below the support ring iii of the main or lower bowl 2|.

In use, the light from the bulb, I2 is diffused through the glass bowl elements 2| and 31 for adequate illumination of the general storeroom. The baille unit B permits some of the light to be projected directly downward therefrom, with some lateral diffusion, for more brilliant illumination of the counters and floor substantially directly therebelow and the merchandise on display. However, the downwardly protruding baille partitions in the relation described are so disposed as to serve for anti-glare shielding to protect the customers from being dazzled by direct view or glare from the incandescent filament.

The vertical baffle partitions are brightly illuminated from the lamp and the illusion is thereby created of a cast stained glass structure, the lines of demarcation between the various baffie partitions creating the illusion of the sutures between segments of glass. Moreover, by virtue of the different levels to which the partitions protrude, there is produced a shadow effect, affording a three dimensional impression of solidity.

It will be seen that the lamp in its preferred embodiment is devoid of any reflector, and that the parts are so correlated that freedom of expansion thereof is permitted without likelihood of cracking under the heat of the lamp. Although the fixture appears to the eye completely to enclose the bulb, it is quite adequately ventilated not only through the louvers defined by the bafile partitions, but through the large opening between the rim of the outer bowl 2| and the much smaller rim of the inner bowl 37.

It will thus be seen that there is herein described a lighting fixture in which the several features of this invention are embodied, and which in use attains the various objects of the invention and is well suited to meet practical requirements.

As many changes could be made-in the above disclosure and many apparently widely different embodiments of this invention could be made without departing from the scope of the claims, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters ing downward to different extents from the rim of said enclosing means.

2. In a lighting fixture, a light source, an euclosing bowl therefor, open at its bottom and presenting an inturned rim thereat, a baille unit supported at said rim, said unit comprising a pattern of louver walls including a series of combined rectilinear and curvilinear walls including scrolls extending in a diversity of directions, the lower edges of said scrolls protruding progressively downward from the periphery to the extremity of each said scroll, 3. A lighting fixture, comprising a socket cover, an upper light difiusing bowl attached to said cover, and flaring downward therefrom, support arms attached to said cover, a lower bowl of larger diameter carried by said support arms, concentrically with said upper bowl, an electric light bulb protruding from said socket cover, said larger bowl having a concentric opening in the bottom thereof, presenting a rim, a baflle unit supported upon said rim, said unit comprising a pattern of louver walls defining openings of a variety of geometric configurations, the lower edges of said walls extending downward to different extents from said lower bowl.

4. A lighting fixture comprising a socket cover, an upper bowl supported from its upper rim within said cover and flaring downwardly therefrom, support arms rigidly secured to said cover and radiating outward and downward therefrom, a support ring carried by said arms and of diameter considerably larger than that of said upper bowl, a lower bowl carried at its upper rim by said ring and extending downward therefrom, said bowl having a central opening in its bottom ofa diameter in the order of that of said upper bowl, a battle unit having an integral support flange resting on the rim of said opening, said unit comprising a pattern of louver walls including a series of combined rectilinear and curvilinear walls including scrolls extending in a'diversity of directions, the lower edges of said walls extending downward to different extents below said support flange.

EDWARD F. SIBBERT. 

